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JPS5637225A - Dry manufacture of uranium dioxide powder with superior sinterability - Google Patents

Dry manufacture of uranium dioxide powder with superior sinterability

Info

Publication number
JPS5637225A
JPS5637225A JP11172879A JP11172879A JPS5637225A JP S5637225 A JPS5637225 A JP S5637225A JP 11172879 A JP11172879 A JP 11172879A JP 11172879 A JP11172879 A JP 11172879A JP S5637225 A JPS5637225 A JP S5637225A
Authority
JP
Japan
Prior art keywords
uranium
uranium dioxide
dioxide powder
jet mill
fluidized bed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP11172879A
Other languages
Japanese (ja)
Other versions
JPS593937B2 (en
Inventor
Sadaaki Hagino
Eiichiro Nakai
Teru Tanaka
Noboru Fujiwara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Metal Corp
Original Assignee
Mitsubishi Metal Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Metal Corp filed Critical Mitsubishi Metal Corp
Priority to JP54111728A priority Critical patent/JPS593937B2/en
Publication of JPS5637225A publication Critical patent/JPS5637225A/en
Publication of JPS593937B2 publication Critical patent/JPS593937B2/en
Expired legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

Landscapes

  • Inorganic Compounds Of Heavy Metals (AREA)

Abstract

PURPOSE: To economically manufacture the titled uranium dioxide powder by a dry process by reducing uranium trioxide formed by fluidized thermal decomposition and pulverizing the resulting uranium dioxide with a jet mill.
CONSTITUTION: Uranyl nitrate is thermally decomposed in a fluidized bed, and the resulting uranium trioxide is reduced in a hydrogen atmosphere at about 500W900°C in a fluidized bed type reducing furnace to form uranium dioxide. This uranium dioxide is pulverized with a jet mill pulverizer using air as carrier gas to obtain uranium dioxide powder having superior sinterability and suitable for manufacturing nuclear fuel pellets. The ratio of oxygen/uranium is preferably adjusted to about 2.05W2.12 in the above-mentioned jet mill pulverization.
COPYRIGHT: (C)1981,JPO&Japio
JP54111728A 1979-09-03 1979-09-03 Dry manufacturing method for uranium dioxide powder with excellent sinterability Expired JPS593937B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54111728A JPS593937B2 (en) 1979-09-03 1979-09-03 Dry manufacturing method for uranium dioxide powder with excellent sinterability

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54111728A JPS593937B2 (en) 1979-09-03 1979-09-03 Dry manufacturing method for uranium dioxide powder with excellent sinterability

Publications (2)

Publication Number Publication Date
JPS5637225A true JPS5637225A (en) 1981-04-10
JPS593937B2 JPS593937B2 (en) 1984-01-26

Family

ID=14568656

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54111728A Expired JPS593937B2 (en) 1979-09-03 1979-09-03 Dry manufacturing method for uranium dioxide powder with excellent sinterability

Country Status (1)

Country Link
JP (1) JPS593937B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63249096A (en) * 1987-04-06 1988-10-17 日本ニユクリア・フユエル株式会社 Manufacture of nuclear fuel pellet
US6306853B1 (en) 1998-02-10 2001-10-23 Nikken Chemicals Co., Ltd. 1,4-Dihydropyridine derivatives

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63249096A (en) * 1987-04-06 1988-10-17 日本ニユクリア・フユエル株式会社 Manufacture of nuclear fuel pellet
US6306853B1 (en) 1998-02-10 2001-10-23 Nikken Chemicals Co., Ltd. 1,4-Dihydropyridine derivatives

Also Published As

Publication number Publication date
JPS593937B2 (en) 1984-01-26

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